//理解组件语法
import React from 'react';
//将App组件渲染到<div id="root"></div>里面去。
import ReactDOM from 'react-dom';
import './style.css';
//App组件，大写字母开头都是组件
import TodoList from './TodoList';

ReactDOM.render(<TodoList />, document.getElementById('root'));

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: http://bit.ly/CRA-PWA
